APA-čujuhus (7. p.)
DeBoer, W. R. (1996). Traces behind the Esmeraldas shore: Prehistory of the Santiago-Cayapas Region, Ecuador. University of Alabama Press.
Chicago-čujuhus (17. p.)
DeBoer, Warren R. Traces Behind the Esmeraldas Shore: Prehistory of the Santiago-Cayapas Region, Ecuador. Tuscaloosa, Ala.: University of Alabama Press, 1996.
MLA-čujuhus (9. p.)
DeBoer, Warren R. Traces Behind the Esmeraldas Shore: Prehistory of the Santiago-Cayapas Region, Ecuador. University of Alabama Press, 1996.
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